| 摘要 |
PURPOSE: A light guide plate for a backlight is provided to improve light uniformity by restricting a hot spot generated from a light emitting area. CONSTITUTION: A plurality of negative grooves is formed in a single-side of a light guide plate(10) A plurality of negative grooves(11) is expanded in parallel to a longitudinal direction of the light which is income in a side of the light guide plate. A negative groove has a value of range of 1~30μm, interval 10~150μm, width 3~100μm, and closed angle 50~150°. An other side of light guiding plate includes the negative pattern(15) of a hemispherical is included. |
